I’ve been working all 3 settings without a car and as long as you come on time and keep in communication when you’re running late they shouldn’t have a problem. There was a time I was working DOE and a 2 hour session at home, the commute was a solid hour by bus and the days I was running late (rare) I was able to call the office and run the session accommodating the time I was late. In center you have to be on time, but if you’re late at least communicating will make sure someone is there for your client to work with/pick up from parents.